I picked up this clam a couple weeks ago. It was sold as a Maxxima? Don't know for sure. This is the first time I have had a clam this small 2" so since the pic, I set him on a small rock and he has attached. I feed him a cap of Dt's every 2-3 days by placing him with his rock in a bowl and then pull him out of the tank and pour in the phyto and let him sit for about 30 min till the green clears up.